riparian proper functioning condition a tool for integrating the fundamental sciences into...
TRANSCRIPT
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RIPARIANPROPER FUNCTIONING CONDITIONA Tool for Integrating the Fundamental Sciences
into Collaborative Decision-Making
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Dixie Creek NV 1989
Dixie Creek NV 1995
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Burro Creek AZ 1981
Burro Creek AZ 2000
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““Information does not resolve social Information does not resolve social conflicts, people do.”conflicts, people do.”
(Duane 1997)
Address Barriers
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Creeks & Communities • Work with people on their land and issues• Requires network of individuals
√ Diverse backgrounds√ Can read the land and communicate it
effectively√ Know how to work with people and manage
conflict
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Bring diverse groups of people together
Focus initially on the physical function
Build understanding of the attributes & processes that help produce desired benefits and values
Create respectful learning environments
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Science, Technical, Social
• PFC is qualitative based on science
• It is applied by people with strong technical skills and experience
• It allows all members of the community to understand and participate
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Proper Functioning Condition
• On-the-ground condition
• Assessment method
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PFC On-The-Ground Condition
• Dissipate stream energy• Reduce erosion• Filter sediment• Capture bedload• Aid floodplain
development• Improve floodwater
retention and groundwater recharge
• Develop root masses that stabilize stream banks
• Increased water quality and quantity
• Diverse ponding and channel characteristics
• Habitat for fish and wildlife
• Greater biodiversity
Adequate vegetation, land form or large woody material to:
Physics Values
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Adequate vegetation, landform or large woody material present
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Functional - At RiskRiparian-Wetland Areas in
Functional Condition (partially)
However an existing attribute
• Soil • Water• Vegetation
Makes them susceptible to degradation during high-flow events like the 5-, 10-and 20- year events
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An existing attribute makes them susceptible to degradation during high-flow events like the 5-, 10-and 20- year events = F-A-R
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Nonfunctioning
To:• Dissipate stream energy• Improve floodwater retention &
groundwater recharge• Stabilize streambanks• And other characteristics common to PFC
Areas that are clearly not providing adequate vegetation, landform, or large woody debris
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Clearly not providing adequate vegetation, landform, or large woody debris
= Non-Functional
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PotentialThe highest
ecological status a riparian-wetland area can attain given no political, social, or economic constraints.
Potential natural community.
Dimension, pattern, & profile
Being all it possibly can be.
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Capability
Highest ecological Highest ecological status an area status an area can attain given can attain given politicalpolitical, , socialsocial, , or or economiceconomic constraints, constraints, which are often which are often referred to as referred to as limiting factorslimiting factors.. The highest ecological
status it can attain given major influences by humans.
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PFC Hydrology Items
• Floodplain
• Beaver Dams
• Channel Characteristics
• Riparian Area Widening
• Watershed Influence
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PFC Vegetation Items• Diverse Age-Class• Diverse Composition• Soil Moisture
Characteristics• Root masses• Vigor• Adequate
Vegetative Cover• Source of Large
Woody Material
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PFC Erosion/Deposition Items
• Floodplain and Channel Characteristics
• Point Bars Revegetating
• Lateral Stability• Vertical Stability• Water & Sediment
Balance
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Functioning Condition
Woody shrubs such as willows
Some riparian-wetland areas can function properly before they achieve their potential.
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Functioning Condition
Others may require the potential vegetation to function.
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When PFC has been achieved, physical processes are in a working order, and conditions can progress towards desired conditions
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Riparian Area RecoveryRiparian Area RecoveryPFC*
Vulnerable
TimeFisheries ValuesLivestock ValuesRecreation ValuesWildlife ValuesWatershed Values
Desired Condition
Bare Ground
PNC
*Proper Functioning Condition= Resilient during 5-, 10, and 20- year events
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An Assessment Method
• Completed by experienced IDT, but encourages participation of local people
• First step, not last step
• Helps prioritize efforts at different scales (stream, watershed, basin)
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PFC Assessment Method
VegetationSoil, Landscape
Water
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What’s workingwell?
What may be limiting?
How can
management
be improved?
What further evaluations are appropriate?
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Priority for Restoration
• Function at Risk non-apparent or downward trend
• Maintain and protect proper functioning streams
• Non-functioning streams• There may be reasons to
use different priorities
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Development & Implementation
• Multi-agency team of top scientists from Hydrology, Soils, Vegetation, Biology.
• Four year study period in the 12 Western States (1988-92).
• Collected soil, hydrology, and vegetation information at field sites.
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Subjective?
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Learning Together
• Understanding of Processes
• Common Vocabulary• A Common Vision
PFC workshops bring local people, government workers, scientists, farmers, ranchers and many others together
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What do you see?
Pearl Creek NV 1982
Pearl Creek NV 1983
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Finding a Common Interest Without Forcing Common Values
Muddy Creek WY 1986
Muddy Creek WY 1996
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Riparian Function
• Better understanding of riparian function
• Enough agreement that leads to collective action through management
Awareness
Acceptance
Accountability
Action
understanding
results
agreement
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Testimonial
• Sustainable Northwest…one of our partners in the Klamath Basin